How to Fish Bowhead Whale and Volcano Ending Guide

Quick answer

On the Volcano, finish the scientist’s five-fish request to receive the Fish Bucket. Use it for the Bowhead Whale, then keep the whale body instead of selling or abandoning it. Carry the body to the volcano crater and throw it in to trigger the Mutated Bowhead Whale. After that fight, keep the final boss quest drop and return it to the scientist. Current English guides call it the Whale Fin; some guides translate it as a tail. The scientist gives you the key to the black military boat. Start that boat and return to the mainland to reach the credits.

The Bowhead Whale is not an isolated lure-table entry. It sits in the Volcano endgame chain, and the body from the first encounter is the trigger for a second boss. That makes inventory decisions more important than a precise sailing coordinate: selling, cooking, or leaving the wrong object can break your immediate plan even when the catch itself succeeded.

This route was cross-checked against multiple current walkthroughs and official patch 1.0.11. The official notes do not document every quest beat, so the sequence remains community-verified and patch-sensitive. Exact health, damage, spawn coordinates, and a guaranteed solo timing are deliberately omitted.

Prepare before starting the Volcano chain

Arrive with inventory space, healing or food you already trust, ammunition or weapons appropriate to your difficulty, and enough fuel to move between the Volcano shore and crater. Save normally and make a folder backup before a long attempt. Do not rely on the roulette table as your preparation plan; its outcome is random and patch 1.0.11 moved the Island 6 table without turning it into guaranteed income.

Patch 1.0.11 also changed two details that matter during cleanup. Items must be held at least once before they can be sold, and your own explosives can kill you even when friendly fire is disabled. Pick up quest objects deliberately, but keep distance from your own blast radius.

Complete the scientist’s five-fish request

Find the scientist on the Volcano and follow the displayed request for five fish. Use the in-game quest text as the authoritative list for your save instead of copying a list from a different patch or difficulty. Catch and hand in the requested fish until the scientist gives you the Fish Bucket.

Verify the item name before leaving. Fish Bucket is the community-tested Bowhead Whale bait; it is not interchangeable with the Carrot used for Pufferfish or the Modified Leech used for Giant Piranha. If the bucket never appears, recheck the scientist’s remaining counter and your held items before assuming the whale is bugged.

Catch the first Bowhead Whale and keep the body

The body is the bridge between the two whale fights. Players who treat the first whale as ordinary sale inventory can finish the fight yet have no obvious next objective. If you are playing co-op, state who is carrying the body and stay together while moving it so the group does not assume another player has it.

Equip the Fish Bucket and confirm that the scientist’s preceding task is complete.
Use the current quest and encounter feedback to locate and engage the Bowhead Whale. Do not depend on an invented universal coordinate.
Finish the encounter, then identify the whale body among nearby objects before moving away.
Pick up or otherwise preserve the body exactly as the game allows. Do not sell, cook, or abandon it.
Carry the body toward the volcano crater. If the object disappears after a crash or load, stop repeated saves and protect the save folder before troubleshooting.

Important: Do not confuse the first whale body with the final boss quest drop. The body goes into the crater; the later drop goes back to the scientist.

Throw the body into the crater and beat the mutated whale

Take the Bowhead Whale body to the volcano crater and throw it in. Current walkthroughs agree that this is the trigger for the Mutated Bowhead Whale. If nothing happens, confirm that you carried the body from the first whale rather than an ordinary fish and that the preceding scientist task is complete.

Fight the Mutated Bowhead Whale using the equipment and spacing that fit your difficulty and player count. This guide does not publish unsupported health totals or a promised number of attacks. In co-op, revive and inventory visibility can add confusion; patch 1.0.11 says an invisible-inventory issue after joining was hopefully fixed, so treat a repeat case as reportable rather than impossible.

Return the final drop and leave by military boat

The different fin-versus-tail labels come from current guide wording, not from two proven drops. Follow the item name and objective displayed by your build. What matters operationally is that the drop from the final whale goes to the scientist and unlocks the military boat key.

After the Mutated Bowhead Whale is defeated, locate and keep its quest drop.
Return that item to the scientist. English walkthroughs call it the Whale Fin; some other guides call the same progression object a tail.
Receive the key for the black military boat and make sure it is registered before leaving the NPC.
Find and start the black military boat, then steer back toward the mainland as the objective directs.
Continue until the credits trigger. The normal island route ends here; this does not reveal a sixth standard radar island.

Endgame stuck checklist

Change one condition at a time. Record the patch, quest text, held item, and last completed hand-in before retrying. That evidence is more useful to support than a claim that the whole endgame is broken, and it reduces the risk of overwriting a recoverable state.

No Fish Bucket: finish every fish still shown in the scientist’s five-fish request.
No first whale encounter: equip Fish Bucket and confirm the scientist step is complete.
No mutated whale: recover the first Bowhead Whale body and place that body into the crater.
No military boat key: collect the final boss quest drop and return it to the scientist.
Boat will not start: confirm you received the key; then use the boat troubleshooting guide for a separate physics or session problem.
Credits do not trigger: follow the return-to-mainland objective rather than searching for a sixth normal island.

Questions players ask

What lure is used for Bowhead Whale?

Fish Bucket. Complete the Volcano scientist’s five-fish request to receive it, then use the current objective and encounter feedback rather than an invented fixed coordinate.

What do I do with the first Bowhead Whale body?

Keep it and throw it into the volcano crater. Current walkthroughs agree that this triggers the Mutated Bowhead Whale encounter.

Is the final drop a Whale Fin or a whale tail?

Current English walkthroughs call it the Whale Fin, while some guides call it a tail. Treat those as wording for the final boss quest drop and follow the item name shown in your game.

How does How to Fish end?

Return the final whale drop to the Volcano scientist, take the key to the black military boat, start it, and return to the mainland to trigger the credits.

Continue with the right tool

Sources and version notes

This page was checked on 2026-09-04 against patch 1.0.11. Community strategies can change; official patch notes take priority when they conflict.

Steam Community Lure Guide Current player-tested lure table. Comments expose active disagreements, so uncertain entries are labeled.
How to Fish Patch 1.0.11 Official Steam Deck, GeForce NOW, save backup, controls, selling, explosives, join, attachment, and Drip Parrotfish changes.
How to Fish on Steam Developer, release date, base game description, system requirements, and the official count of 28 achievements.
KeenGamer Complete Walkthrough and Fish Locations Current cross-check for the Volcano scientist, Fish Bucket, two-whale sequence, final quest drop, military boat key, and credits.
GamerSky Volcano Island Solo Walkthrough Independent solo-route cross-check for preparation, the Bowhead body trigger, Mutated Bowhead Whale, final hand-in, and boat ending.